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<pre class="textdiagram" id="fig36">
            +--------+
            | Client |
            +--------+
            |  REQ   |
            +---+----+
                |
                |
    +-----------+-----------+
    |           |           |
    |           |           |
+---+----+  +---+----+  +---+----+
|  REP   |  |  REP   |  |  REP   |
+--------+  +--------+  +--------+
| Worker |  | Worker |  | Worker |
+--------+  +--------+  +--------+
</pre>
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